No, not all distributions are symmetrical, and not all distributions have a single peak.
Don't know what "this" is, but all symmetric distributions are not normal. There are many distributions, discrete and continuous that are not normal. The uniform or binomial distributions are examples of discrete symmetric distibutions that are not normal. The uniform and the beta distribution with equal parameters are examples of a continuous distribution that is not normal. The uniform distribution can be discrete or continuous.
The Normal distribution is, by definition, symmetric. There is no other kind of Normal distribution, so the adjective is not used.
Mean
The statement is false. The binomial distribution (discrete) or uniform distribution (discrete or continuous) are symmetrical but they are not normal. There are others.
yup, it's a bell curve
Don't know what "this" is, but all symmetric distributions are not normal. There are many distributions, discrete and continuous that are not normal. The uniform or binomial distributions are examples of discrete symmetric distibutions that are not normal. The uniform and the beta distribution with equal parameters are examples of a continuous distribution that is not normal. The uniform distribution can be discrete or continuous.
Symmetric
The Normal distribution is, by definition, symmetric. There is no other kind of Normal distribution, so the adjective is not used.
24
Mean
The statement is false. The binomial distribution (discrete) or uniform distribution (discrete or continuous) are symmetrical but they are not normal. There are others.
The Normal ditribution is symmetric but so are other distributions.
No. The binomial distribution (discrete) or uniform distribution (discrete or continuous) are symmetrical but they are not normal. There are others.
It is a continuous parametric distribution belonging to the family of exponential distributions. It is also symmetric.
They are both continuous, symmetric distribution functions.
yes, it's always symmetric
A small partial list includes: -normal (or Gaussian) distribution -binomial distribution -Cauchy distribution